Quoting Ralf Baechle <ralf@linux-mips.org>:
Ralf wrote:
> There is no requirement at all for a system to have physical memory in
> KSEG0 - the Octane to my knowledge one example. What every sane system
> needs to have in KSEG0 are exception handlers. Of course they could also
> reside in a ROM but that's insane so you should expect at least a few kb
> of RAM at physical address zero.
At this point I wouldn't put anything past SGI, but it's good to know my
suspicions about kseg0 are confirmed.
>
> Due to the Octane's funky address space layout and the current tools
> limitations the kernel will have to run in CKSEG2 instead of KSEG0 ...
>
> Ralf
/nod. Onward and upward.
Thanks,
Erik
--
Erik J. Green
erik@greendragon.org